Colossians 3:15 clearly tells us how. It says, And let the peace (soul harmony which comes) from Christ rule (act as umpire continually) in your hearts [deciding and settling with finality all questions that arise in your minds….
If you follow God’s leadership, you will have peace, joy, righteousness, and you’ll bear good fruit. What you won’t be is confused and frustrated.
God never leads us to busy ourselves so much that we’re stressed out all the time and have no joy. And He won’t try to confuse your mind—that’s the enemy’s job.
To find where your peace lies, simply ask yourself: Is there a scripture that applies to my situation? What does the Word say I should do?
For example, if there’s something you want to buy but you don’t have enough in your bank account to buy it, it’s probably best to wait because God doesn’t want us to be in debt (see Romans 13:8).
Many times, God’s Word sounds a lot like common sense. I encourage you to let the peace in your heart decide with finality every question that arises in your mind.